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Colegiul National ”Eudoxiu Hurmuzachi” (2025 CyberFair Project ID 8781)
Romania,
Radauti
Official Status:
Final Project: Ready for Judging
Teacher:
Category: 7. Environmental Awareness
We estimate 4 student(s) from 13 to 17 will work on this entry.
Description of Our Community: Our local communty is located in Romania , a Central European Country. Situated in the center of the depression with the same name, at an altitude of 360-380 m, Radauti has established its hearth in the confluence angle of Suceava with Sucevita. The oblong form of the dumps (NV-SE) favors the conduct of the wind blowing in this way, and the numerous water surfaces introduce some changes in the normal way of meteorological elements. The average annual temperature is 6.9°C; the average annual temperature of July is 18.2°C and of January -5.3°C. The average annual rainfall is 643.6mm. The clime is temperate. At first sight, an opened territory, the area of the town called Radauti is well hidden in a natural way, by the swampy land that surrounds it. This natural protection, associated with the vast possibilities of practicing the agriculture and cattle rising, have made Radauti, from the ancient times, an adequated place for living (the oldest signs found are from 7000 years ago). The first document that certifies the town dates from 1392, where Radauti was mentioned as the village of Radomir, making part of his properties, from which, as some versions say, it is supposed to have derived the name of the town. Other opinions say that the settlement has its origins in old times and the name “Radauti” comes from the latin word Rottacenum, given by the soldiers to name the roman garrison in Siret. Under slave influences we assist at a distortion of the original name Rottacenum and its conversion to Radauti, as it appears in later documents.
Project Description: Density is a physical quantity which represents the mass of the unity of volume. It shows us how much a cubic meter of substance weighs. In the international system of measurement, density is quantified in kg/m3. In day to day life, kg/m3 is used quite frequently. Water is part of the few bodies whose volume grows through solidification and thereby shrinks its density. At 0 degrees Celsius, water freezes, increasing its volume by 9%. The small value of density is due to the structure of the crystalized network. Because the density of ice is so much smaller than that of water, the water floats on the surface of the liquid. Normally, the density of a liquid decreases with the increase in temperature. Water has a different behavior between 0 and -4 degrees Celsius (nicknamed the anomaly of water). In this interval, the volume shrinks, and the density increases. The colder waters (which a higher density) can attract cold currents or can influence the climate. Moreover, the variables of density can affect the humidity of air and the formation of clouds. The changes of temperature of water influence local ecosystems, the vegetation, and the fauna. During winter, at the bottom of lakes there is water at 4+ degrees Celsius, which makes aquatic life possible. The local climate can change based on the changes of temperature of water and density, and in the long run, in the context of global warming.